US20210348593A1 - Vertical Tilting Blade Turbine Wind Mill - Google Patents

Vertical Tilting Blade Turbine Wind Mill Download PDF

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Publication number
US20210348593A1
US20210348593A1 US17/303,232 US201917303232A US2021348593A1 US 20210348593 A1 US20210348593 A1 US 20210348593A1 US 201917303232 A US201917303232 A US 201917303232A US 2021348593 A1 US2021348593 A1 US 2021348593A1
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US
United States
Prior art keywords
wind
blade
capture
shaft
rotation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US17/303,232
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English (en)
Inventor
Damodaran Ethiraj
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Individual
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Individual
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Filing date
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Publication of US20210348593A1 publication Critical patent/US20210348593A1/en
Abandoned legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • F03D3/066—Rotors characterised by their construction elements the wind engaging parts being movable relative to the rotor
    • F03D3/067—Cyclic movements
    • F03D3/068—Cyclic movements mechanically controlled by the rotor structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being vertical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • F03D3/064—Fixing wind engaging parts to rest of rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • F05B2240/218—Rotors for wind turbines with vertical axis with horizontally hinged vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/60—Shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/30—Wind power
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy

Definitions

  • This invention relates generally to a vertically oriented windmill having a wind turbine with a plurality of wind capture blades/arms to capture the wind for conversion into electrical energy by rotating a shaft in an electrical generator.
  • This invention relates generally to fixed blade wind turbines, and more specifically to variable rotating blade wind turbines.
  • This invention relates specifically to a variable tilting blade turbine windmill in the form of a drive shaft driven by a plurality of wind capture blade sets (turbines) connectively attached to a shaft wherein said wind capture blades are rotated about their attached rods between presenting a flat surface to capture the wind and an edge to slice through the wind for the purpose of increasing the effectiveness of wind capture by enabling the wind capture blades to be mechanically rotated to present a flat (cupping) capture surface when facing a wind and mechanically rotated to slice through the wind presenting only an edge of the wind capture blade when not in an ideal location to capture wind.
  • the nature of the fixed blade design results in wind drag at various points during the wind capture blades movement around an attached shaft which results in windmills being able to harvest and convert to electrical energy only capturing about thirty to thirty-five percent of the available energy present in the wind.
  • a vertically oriented variable tilting blade turbine windmill device for capturing kinetic energy from a wind comprising a shaft having a first end and a second end wherein said second end is attached to rotate a drive shaft, a central hub connectively attached to said first end having a plurality of wind capture arms comprising a wind capture blade having a capture surface and a slicing edge comprising an inner blade rod having a base end connectively attached to said shaft proximal to said central hub, an outer blade sleeve enclosing a majority of the length of said inner blade rod having a rotating gear connectively attached to said wind capture blade, and a drive gear connectively attached to said shaft at a right angle enabling a rotation of said wind capture blade.
  • a vertically oriented variable tilting blade turbine windmill device wherein said drive gear is connectively attached to said central hub at a right angle enabling a rotation of said outer blade sleeve.
  • a vertically oriented variable tilting blade turbine windmill device wherein said wind capture blades have a push orientation positioned wherein said capture surface is positioned facing an on-coming wind and are rotated by said wind through a rotation about said shaft of between 120° and 240° and are then rotated 90° to present said slicing edge in the direction of said wind enabling said wind capture blade to present a minimized aerodynamic profile in the direction of said wind.
  • a vertically oriented variable tilting blade turbine windmill device wherein said wind capture blades have a push orientation positioned wherein said capture surface is positioned facing an on-coming wind and are rotated by said wind through a rotation about said shaft of between 120° and 240° and are then rotated 90° to present said slicing edge in the direction of said wind enabling said wind capture blade to present a minimized aerodynamic profile in the direction of said wind.
  • a vertically oriented variable tilting blade turbine windmill device further comprising a tilting lever for mechanically rotating said drive gear connectively attached to said central hub configured to enable a rotation up to 90° of said wind capture blades about said inner blade shaft upon rotation of said central hub, a blade guide ring positioned to surround up to 120° of arc proximal to said shaft enabling a rotation of 90° of said wind capture blades about said inner blade shaft upon said wind capture blades passing over said blade guide ring, and a plurality of blade guide posts positioned to stop a rotation of each wind capture blade about said inner blade shaft upon rotation of said wind capture blades.
  • a vertically oriented variable tilting blade turbine windmill device further comprising a wind vane device having a wind direction vector, a drive controller having a rotation control based on said wind direction vector, and a plurality of drive motors operationally attached to said drive controller to operate said drive gears enabling an programmable automated clockwise rotation up to 90° of said wind capture blades about said inner blade shaft and a counterclockwise rotation up to 90° of said wind capture blades about said inner blade shaft depending upon said wind direction vector.
  • a vertically oriented variable tilting blade turbine windmill device further comprising an electrical generator connectively attached to said drive shaft enabling a generation of electricity.
  • variable tilting blade turbine windmill device is the capacity/capability to collect/harvest more of the available energy present in the wind for conversion into electrical energy than currently available windmills.
  • An advantage of the present invention is the increased conversion of wind energy into electrical energy.
  • FIG. 1 is a side view of a central hub having three wind capture blades according to the invention
  • FIG. 2 is a perspective view of a shaft and central hub showing one wind capture blade being connectively attached according to the invention
  • FIG. 3 is a perspective view of a variable tilting blade turbine windmill having one central hub having four wind capture blades connectively attached according to the invention.
  • FIG. 4 is a cutaway view of a variable tilting blade turbine windmill having one central hub having four wind capture blades connectively attached according to the invention.
  • references in the specification to “one embodiment,” “an embodiment,” “an example embodiment,” etcetera, indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
  • FIGS. 1, 2, 3, and 4 there is shown in FIGS. 1, 2, 3, and 4 the following features:
  • Element 1000 which is a variable tilting blade turbine windmill device/apparatus.
  • Element 100 which is a wind capture blade.
  • Element 103 which is a wind capture surface of a wind capture blade.
  • Element 105 which is a wind slicing edge of a wind capture blade.
  • Element 110 which is an outer blade sleeve.
  • Element 120 which is a rolling bearing cap.
  • Element 122 which is a lower strap.
  • Element 124 which is an upper strap.
  • Element 130 which is an inner blade rod.
  • Element 140 which is a knife blade sleeve cup and rotating gear motor.
  • Element 145 which is a rotating gear.
  • Element 150 which is a drive gear.
  • Element 160 which is a drive gear drive motor.
  • Element 170 which is a drive controller.
  • Element 175 which is a wind direction device.
  • Element 190 which is a shaft.
  • Element 195 which is a rolling bearing.
  • Element 200 which is a wind capture blade.
  • Element 203 which is a wind capture surface of a wind capture blade.
  • Element 205 which is a wind slicing edge of a wind capture blade.
  • Element 210 which is an outer blade sleeve.
  • Element 220 which is a rolling bearing cap.
  • Element 222 which is a lower strap.
  • Element 224 which is an upper strap.
  • Element 230 which is an inner blade rod.
  • Element 240 which is a rotating gear drive collar/motor.
  • Element 245 which is a rotating gear.
  • Element 270 which is a blade guide ring.
  • Element 275 which is a tilting lever.
  • Element 280 which is a central hub.
  • Element 282 which is an upper blade guide post.
  • Element 285 which is a lower blade guide post.
  • Element 290 which is a vertical axis shaft.
  • Element 295 which is a rolling bearing.
  • Element 900 which is a windmill stand.
  • blade-mode is used it is intended to imply a maximized surface area presentation of a wind capture blade. For example when a wind capture blade is a facing a wind to in order to capture wind energy.
  • blade-mode is used it is intended to imply a minimized surface area presentation of a wind capture blade to present less surface area and therefore cause less drag against the rotation of a shaft. For example when a wind capture blade is opposing a facing wind.
  • the apparatus/device of the present invention is a vertically oriented tilting blade turbine windmill that is connectively and operationally attached to a shaft so as to rotate the shaft in an electrical generator and thereby generate electricity.
  • the manually operating embodiment of the device/apparatus of the present invention is made by assembling a plurality of wind capture blades about a central hub to rotate a shaft.
  • the wind capture blades comprise an assembly of an inner blade rod connectively attached to a shaft wherein said inner blade rod is enclosed with an outer blade sleeve attached to the end of the inner blade rod with a rotating gear or collar for rotating said outer blade sleeve about the longitudinal axis of said inner blade rod.
  • Said outer blade sleeve is connectively attached to said wind capture blade with a lower strap and an upper strap. This enables the wind capture blade to be rotated about the longitudinal axis of said inner blade rod.
  • Controlling the rotation of the wind capture blades enables the device of the present invention to rotate between presenting a flat surface to capture the wind and an edge to slice through the wind for the purpose of increasing the effectiveness of wind capture by enabling the wind capture blades to be mechanically rotated to present a flat capture surface when facing a wind and mechanically rotated to slice through the wind when not in an ideal location to capture wind.
  • the rotation of the wind capture blades by ninety degrees of arc/rotation from a full flat surface presentation to capture the wind in a blade-mode to a knife-mode wherein the wind capture blade is in an edge presentation to slice through, or pass through, the air/wind with less resistance results in less drag being imposed on a windmill by the fixed positioning of the blades consequently reducing the energy loss of the windmill system and thereby increasing the energy harvesting capacity of a windmill enabled with the device/apparatus of the present invention.
  • Switching the wind capture blades of a windmill enabled with the device of the present invention between blade-mode and knife-mode can be enabled manually with a tilting lever to mechanically rotate said wind capture blade in blade-mode presentation over a blade guide ring into knife-mode presentation and then rotate said wind capture blade back to blade-mode when said wind capture blade pass over the end of the blade guide ring.
  • Rotation is the wind capture blade is maintained in the correct position by the installation (connective attachment) of a plurality of blade guide posts positioned around the base end of the wind capture blade proximal to the shaft or attachment end of the inner blade rod to maximize the capture of a wind for conversion to electrical energy by rotating the shaft/drive shaft through an electrical generator.
  • Switching the wind capture blades of a windmill enabled with the device of the present invention between blade-mode and knife-mode can be enabled automatically with the installation of wind direction device to determine the wind direction vector which is then used by an electronic drive controller having rotational control of a plurality of drive motors connectively attached to rotate the rotation and drive gears enabling the movement of said wind capture blades between blade-mode and knife-mode at any rotational position required to maximize the capture of a wind for conversion to electrical energy by rotating the shaft/drive shaft through an electrical generator.
  • the wind capture blades of the present invention are best embodied wherein the shape of the blade is designed/constructed in a rectangular, flat and broad (wide) configuration/size/shape to maximize surface area presentation in blade-mode, and minimize the surface area in knife-mode.
  • Manual or automated gears and/or the combination of physical limiting controls presented by a tilting lever, blade guide ring, and blade guide posts can be used to control whether and when/where in/during the rotation of the wind capture blades about the shaft occurs to place the wind capture blades into blade-mode or knife-mode.
  • Configuring the device of the present invention to present blade-mode during the primary wind front half of the wind capture blades rotation around the shaft and to present knife-mode during the other half of the rotation has the impact of offer a windmill turbine that has decreased drag during the knife-mode blade presentation thereby resulting in a corresponding increase of capacity of said windmill to capture or harvest energy from the wind.
  • the wind capture blades in blade-mode they are forced by the wind with less resistance presented by the blades in knife-mode resulting in less energy loss into the windmill as a system from wind capture blades not present in the wind stream when not in a location of rotation to be useful for capturing wind and thereby resulting in more energy transfer (harvesting) of energy available in the wind.
  • Using the device of the present invention is best made by determining the wind direction and resulting primary wind force profile presented to a windmill by the wind, and then configuring the blades to be in blade-mode for the primary wind force profile half of the turbines rotation and in knife-mode for the part(s) not as useful for collecting wind energy.
  • the transition between blade-mode and knife-mode can occur at any or multiple locations during a full rotation of the turbine.
  • the present preferred embodiment uses about 240° arc for blade-mode and 120° arc for knife-mode.
  • the present invention offers the capacity to enable the wind capture blades to scoop or cup the wind during transition from blade-mode to knife-mode and during transition from knife-mode to blade-mode creating a rotating scoop with the wind capture blade resulting in an increase in the energy capture from wind and resulting energy conversion into electricity.
  • a vertical axis turbine there is a vertical axis turbine.
  • the vertical axis turbine embodiment is distinctive having a single hub attached to a vertical axis shaft 290 wherein the blades are reoriented mechanically as the blade arms pass over the gliding ring with tilt and arresting leavers as shown in element numbers 270 and 285 in the drawings.
  • a vertically oriented variable tilting blade turbine windmill device for capturing kinetic energy from a wind comprising a shaft having a first end and a second end wherein said second end is attached to rotate a drive shaft, a central hub connectively attached to said first end having a plurality of wind capture arms comprising a wind capture blade having a capture surface and a slicing edge comprising an inner blade rod having a base end connectively attached to said shaft proximal to said central hub, an outer blade sleeve enclosing a majority of the length of said inner blade rod having a rotating gear connectively attached to said wind capture blade, and a drive gear connectively attached to said shaft at a right angle enabling a rotation of said wind capture blade.
  • a vertically oriented variable tilting blade turbine windmill device wherein said drive gear is connectively attached to said central hub at a right angle enabling a rotation of said outer blade sleeve.
  • a vertically oriented variable tilting blade turbine windmill device wherein said wind capture blades have a push orientation positioned wherein said capture surface is positioned facing an on-coming wind and are rotated by said wind through a rotation about said shaft of between 120° and 240° and are then rotated 90° to present said slicing edge in the direction of said wind enabling said wind capture blade to present a minimized aerodynamic profile in the direction of said wind.
  • a vertically oriented variable tilting blade turbine windmill device further comprising a tilting lever for mechanically rotating said drive gear connectively attached to said central hub configured to enable a rotation up to 90° of said wind capture blades about said inner blade shaft upon rotation of said central hub, a blade guide ring positioned to surround up to 120° of arc proximal to said shaft enabling a rotation of 90° of said wind capture blades about said inner blade shaft upon said wind capture blades passing over said blade guide ring, and a plurality of blade guide posts positioned to stop a rotation of each wind capture blade about said inner blade shaft upon rotation of said wind capture blades.
  • a vertically oriented variable tilting blade turbine windmill device further comprising a wind vane device having a wind direction vector, a drive controller having a rotation control based on said wind direction vector, and a plurality of drive motors operationally attached to said drive controller to operate said drive gears enabling an programmable automated clockwise rotation up to 90° of said wind capture blades about said inner blade shaft and a counterclockwise rotation up to 90° of said wind capture blades about said inner blade shaft depending upon said wind direction vector.
  • a vertically oriented variable tilting blade turbine windmill device further comprising an electrical generator connectively attached to said drive shaft enabling a generation of electricity.
  • the device of the present invention has several advantages. It offers decreased wind capture blade resistance resulting in greater energy transfer conversion into electrical energy by enabling several new ways to use the rotating wind capture blades. A further advantage with the addition of a second turbine attached to the same shaft at its other end results in doubling of the harvest leading to increased electricity generation.
  • the rotating blade wind turbines created to embody the present invention offer the advantage of less drag from the blades in knife-mode resulting in less consumption of energy by the turbine resulting in more energy transfer into the shaft and the resulting increase in energy harvest from the wind.
  • Another advantage of the present invention is the ability to configure the presentation (blade-mode, or knife-mode), timing, and location of change in wind capture blade orientation (blade-mode, or knife-mode) for each wind capture blade.
  • the present invention When embodied for automatic rotation, there is the further advantage of the present invention to scoop, cup, or grab more air resulting in more energy transfer from wind to wind capture blade and its corresponding increase in energy transfer from the wind into electrical energy with a windmill enabled with the device of the present invention.
  • the capacity to configure the arc length, timing, and duration for the wind capture blade to stay in blade-mode permits an operator to adjust the windmill to maximize blade-mode presentation to keep the wind capture blades in blade-mode for at least that half of the turbine rotation where the wind is its strongest within the wind profile offer to the windmill.
  • Increased conversion of wind energy into electrical energy is accomplished with the present invention by presenting less surface area of the wind capture blade during the time when the wind capture blade in a location that it would present movement resistance, and maximum surface area when the wind capture blade in a location that it would capture wind movement.
  • An advantage of the present invention is the increased conversion of wind energy into electrical energy. Because of the variable surface presentation available for the wind capture blades of the tilting blade turbine windmill device, the wind capture blades of the present invention are able to functionally present its largest available surface area to be pushed by the wind when the wind is moving at, or about, a right angle to the wind capture blade surface, and its smallest available surface area to slice/cut through the wind with less drag or resistance when the direction of the wind capture blade is moving against the wind.
  • the wind capture blades effectively cup the wind when presented with a wind direction facing the wind capture blades, and slice through the wind presenting less resistance when moving contrary to a direction to capture the wind.
  • the half to three-quarters of the rotation of the turbine that has the wind capture blades in blade-mode can even be adjusted to feather (delicately transition into) blade-mode into knife-mode and to feather knife-mode into blade mode. Feathering or easing (longer time to rotate) between blade modes allows a windmill turbine to be configured to scoop, cup, or grab the wind at the points where the wind capture blades transition between modes similar to a passenger in a automobile flying their cupped hand out an open car window.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Wind Motors (AREA)
US17/303,232 2018-11-26 2019-05-04 Vertical Tilting Blade Turbine Wind Mill Abandoned US20210348593A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IN201841044370 2018-11-26
IN201841044370 2018-11-26
PCT/IN2019/000010 WO2020110133A1 (fr) 2018-11-26 2019-04-05 Éolienne à pale planante à axe vertical

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US20210348593A1 true US20210348593A1 (en) 2021-11-11

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US17/303,232 Abandoned US20210348593A1 (en) 2018-11-26 2019-05-04 Vertical Tilting Blade Turbine Wind Mill

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US (1) US20210348593A1 (fr)
EP (1) EP3908745B1 (fr)
ES (1) ES2957404T3 (fr)
WO (1) WO2020110133A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023025237A1 (fr) * 2021-08-26 2023-03-02 黄始征 Mécanisme de base destiné à la conversion de l'énergie hydraulique en énergie mécanique

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US512712A (en) * 1894-01-16 Wind or current operated wheel
NL9001343A (nl) * 1990-06-13 1992-01-02 Tadema Cornelis Windmolen.
KR101180832B1 (ko) * 2009-11-24 2012-09-07 노영규 수직형 풍력발전용 틸트식 회전날개장치
EP3507486A1 (fr) * 2016-04-15 2019-07-10 Ethirajulu Damodaran Éolienne à double turbine à pales à inclinaison variable

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EP3908745C0 (fr) 2023-06-28
EP3908745B1 (fr) 2023-06-28
WO2020110133A1 (fr) 2020-06-04
ES2957404T3 (es) 2024-01-18
EP3908745A4 (fr) 2022-06-01
EP3908745A1 (fr) 2021-11-17

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